Solar Rodent Repeller - Sunflower Design Solar Rodent Repeller safely eliminates pests day and night. It emits a low, audible beep and also a sonic pulse that humans and pets can't hear, but annoys moles, gophers and other burrowing rodents. Unable to tolerate the constant underground vibration, the rodents flee your yard and garden. Covers 650 sq. ft. Maintenance-free unit requires no electricity. Decorated to look like a sunflower stake, it has an integrated solar panel at the top.